Acetylene-gas lamp.



mi. 634,757. Patented Oct. 10, .1 99.

P. JOSSERANB.

I ABETY'LENE GAS LAMP.

fApplicntion filed. Apr. 14, 1899.)

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' WITNESSES: //v

Tn: man s vncns co. PNGYO-LIYHQ. wlsumamm 04 c UNITED STATES PATENTOFFICE.

PETER JOSSERAND, OF JOSSERAND, TEXAS.

I YACET'YLENE-GAS LAMP.

SPECIFICATION forming part of Letters Patent NO. 634,757, dated October10, 1899.

. Application filed April 14, 1899. Serial No. 713,009. No model.)

To all whont it may concern:

Be it known that I, PETER JossERAND, of Josserand, in the county ofTrinity and State of Texas, have invented a new and improvedAcetylene-Gas Lamp, of which the following is a full, clear, and exactdescription.

The object of the invention is to provide a new and improvedacetylene-gas lamp which is simple and durable in construction, moreespecially designed for use as a portable tablelamp,and arranged toinsure a uniform, perfeet, and brilliant light.

The invention consists of novel features and parts and combinations ofthe same, as will be fullydescribed hereinafter and then pointed out inthe claims.

A practical embodiment of my invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement. Fig. 2 is a sectionalside elevation of the same, and Fig. 3 is an enlarged sectional sideelevation-of the self-regulating valve.

The improved acetylene-gas lamp is provided with a suitable base A, onwhich is set a bowl, forming a generator B and containing the calciumcarbid C. On the neck B of the generator Bis screwed a cap D,terminating in anupwardly-extending pipe E, supporting a water-reservoirF, adapted to be filled with water through a filling-cap G, having asuit able vent-pipe H to admit air to the water that the latter may flowto the generator B, as hereinafter more fully described.

The upper end of the pipe E connects with a pipe I, extending centrallythrough the water-reservoir F to connect at the upper end with theburners J'for burning the generated gas to produce the desired light.-

From the bottom of the water-reservoir F at one side of the pipe Eextends downward a pipe K, bent upwardly at its lower. end to connectwiththe chamber N of a self-regulating valve N. (Shown in detail in Fig.3.) The chamber N is provided with avalve N adapted to be seated on theend of the pipe K,said valve having adownwardly-extending stem N fittingloosely in the opening of the pipe K to insure a proper seating of saidvalve N A pipe 0 leads from the chamber N a short distance above thevalve N and extends through the cap'D into the generator, preferably atthe middle thereof, the lower end 0 of the pipe 0 being contracted toallow but a drop of water to pass out of the pipe at'a time. The top ofthe valve N is provided with a stem N countersunk at its top to receivethe pointed lower end P of a screw-rod P, screwed in a screw-cap Nclosing the upper end of the collar P Now when the sore w-rod P isscrewed downward the valve N is moved to its seat to disconnect the pipeK from the chamber N; but when it is desired to use the lamp thescrewrod is screwed outward until the collar P abuts against the undersideof the cap N to allow the spring Q to just hold the valve N looselyto its seat.

In order to fill the generatonbowl with calcium carbid, it is onlynecessary to unscrew the cap D, and after the desired quantity ofcalcium carbid is placed in the b0 wl then the cap is again screwed uponthe npck B. The reservoir F is filled with water through the filling-capG, and when it is desired to use the lamp the screw-rod P is screwedoutward, as above explained, so that the water from the overheadreservoir F can flow through the .pipe K against the valve N andlift-the latter 0d its seat and to allow the water to rise in thechamber N and finally flow into the pipe 0 and down the same into thegenerator B, the water passing in drops from the contra-cted end 0 uponthe carbid O to cause a generation of gas, This gas rises in thegenerator and passes through the cap 1) and pipe E into the pipe I andto the burners J -to pro duce a steady uniform flame and a verybrilliant light.

In case the pressure of gas generated in the generator B overbalancesthe water-pressure on the valve N then the latter is forced to its seatby the overbalancing pressure to pre vent water from passing from thereservoir water passing through the regulating-valve and the pipe 0 tothe generator is effectively regulated to insure a uniform generation ofgas, and consequently a uniform flame at the burner J. By reducingtheend of the pipe 0 Within the generator B Water is admitted but dropby drop to prevent a' too quick generation of gas and a consequentflashing up of theflame at the burner J.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 4 1. An acetylene-gas lamp, comprising a base,a bowl carried by the base and adapted to contain calcium carbi'd, saidbowl being formed with a screw-threaded neck, a cap screwing on the neckof the bowl and formed with a contracted tubular extension, a reservoiron the upper end of the tubular'extension and integral therewith, saidreservoir having a central passage extending through it, said passagebeing of less diameter than the tubular extension and opening into thesame'a pipe in the said passage and having an open inner end, the outerend of said pipe projecting above the reservoir and provided with aburner, a water-pipe leading from the bottom of the reservoir, at oneside of the tubular extension intov the bowl, and a self-regulatingvalve in the said pipe outside of the lamp substantially as described.

2. Inan acetylene-gas lamp, the combination with a generator, and aWater-reservoir above the same, of a'valve-chamber, a pipe leading fromthe watenreservoir to the valvechamber, a spring-supported valve in'thesaid chamber and regulating the admission of Water to theCh%t1I1l)61,'ft screw-rod for forcing the valve to its seat, and a pipeleading from the valve-chamber above the entrance of the pipe leadingfrom the reservoir and extending'into the generator, substantially asdescribed.

In an acetylenergas lamp, the combination with a generator, and aWater-reservoir above the generator, of a valve-chamber, a pipe leadingfrom the Water-reservoir to the bottom of the valve-chamber-for closingthe end of said pipe, a valve in said chamber, a screw-rod engaging thevalve-stein, a stop collar on the screw-rod, a coiled spring sur-'rounding the screw-rod and valve-stein, the.

spring being secured to the screw-rod and supporting the valve, and apipe leading from the valve-chamber above the valve to the generator,substantially as described.

